Electrical-light fixture.



R.C.RATT0. ELECTRIC LIGHT FIXTURE.

APPLICATION FILED AUG. 21, 1913.

1,091,961. Patented' Mar. s1, 1914.

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MINIME? wumlilli I @MM R.C.RATT0. y ELECTRIC LIGHT FIXTURE.

APPLIOATION FILED AUG. 21, 1913.

" s Patented Mar..31,1914.

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o Haven and State oli Connecticut, have in! vented a new and u'seiilImprovement in Electric-Light 'lixtures7 of which the iollowingis aspecilicatio'n.

This invention relates generally. to electric lightiixtures and moreparticularly to that class of iixtures in Which :there is a central-body portion from which rodiate arms to which the incandescent light isconnected either in e. pendentcr nupright position.

I rhe object-ot my invention is to provide a fixture en'ihodying eitherround 'or oblong; shaped arms end 'Iframes and which shall loe of suchconstruction that y considerable time can be saved in Wiring thefixture, and. another `object is to provide a xture of such constructionthat the wiring; oi' the arrns canv he accomplished from. the socketendv With lgreat-ease, end the danger of stripping the covering fromthevvire is coinpletelyelinii-- hated. 4

Heret'oiforein. constructing iXtures of this general class it has` beencustomary to attach the socket to solid end body carried at the outerends' of thek 'arms and in` this construction it Wasjusual to empl-oywhat isv known as an. electric center body in con.-

vnecti'on with a` hiclrey and' the Wires have been drawn. downthroughthe central pipe and out through the radiating-arms throngh thesolid end. bodies Which have been bored at right langles and in sovviringfthe fixture there was always danger of' stripping vthe coveringfrom the Wire. v By inynovel construction of'ii'rture il ann able to usethe ordinary gos center lonely iin .connection With-an ordinaryinsulatinggj'oint and completely avoid the use" of' the hiclrey andconsequently eliminate the costv oity these .parts as Well as saveconsiderable time inl the Wiring operation. a Furthermore the lamp.carrying arms are held firmly against4 twistinga and the Weight of thearticlel as e Whole is considerably reduced.

Another object of my invention is to providey a novel method ofattaching the nipples to end bodies and also provide differentialseating rings whereby different sizes of round tubular arms can beemployed.

`i`i7ith these various objects in view, andr 'with certain others asWill appear heroineafter niy invention consists in the novel tea turesof construction, combination and arrangement all'l of which will hefully described hereinafter and pointed ont in the claims.. y

in section showing the central jfortion and one erin of the intureeroicodying) the round arm. and' end' body. Fig. 2 .is top plan View ofthe same Fig. 3 is e longitudinal sectional View. Fig. i is e detailperspective view showing the various Fig. 5 is a side View' show:Ltulonltur slashed' arm. e "clan view of; the saine. iig'is verticallongitudr nel section'.` Fig. 8 is detail perspective view of the partsdetached.

ln carrying out my invention i employ a centraly traine i "which may hecircular in forni as shown in lligs snolY 2 or square as shown in Figs.5 and @fend centrally located in'this traine 'fr is the union B to whichthe siuoporti'ng pipe -i's j connected and from which radiate the pipesvor rods C7 said pipes or rodsheine;v threaded into the union at theirinner' 'ends as shown and having tleir'out'er: ends threaded asindicated at C7". it will'N oi course understood 'that there ere openin``girodinced in tliefrmne through which this g'gipes or rods@ Mvc andopi 'the exterior'- oithe traine surrounding" said securely openings arethe seating ri fastened to the fro-ine one then suitably mounted. ltxviii' of course he understood tliet this seating ringf 1U is circuhirin, 'torni in the round erm fixture and square in the sonore erroii-iture'. And it desired the square seating ring or errule t the squareerin can permanently attschefl to the inner end olivv the seid arm eno`cited into the Isone-.re opening in the frame.

,E indicates the lamp carryingerm whichl as before stated can loecircule" in cross sec- Vtion es shown in Figs.. l, 9., 3 and et? orsquare or oblong; in cross section as shown in Figs. 5, 6 and, this arm-E enveloping the outwardly extending' pipe or rod C as most clerlyshovvnin, the construction shown in Figs. l. Q, 3 and i the outer endoit .firm 'it beau-s agonist a seating ring l? circular torni andprovided "with oppositely disse iianges FQ one or 'which entends in 1.nr-in E chile the other enters acirculsr opening in 'parte detached.;

' the square or Y Y i in the drawings forming e this lllO.

lhfla lOOly or shell G, said end bodytor shell having va .nipple -l-Iattached thereto and to' which the light 'socket is connected.

. This nipple H has itsend inserted in the shell Gf and is thenroll'lea'lffover as shown at H before being cemented land in thisinanner is securely connectedftolthe shell so that all 'possibility ofthe nipple workinv loose is avoided. The shell or end body tx has anopening G ,oppositevto th'at vin which the ringl? seats, said opening Gbeing prefer,-

'lably smaller than the other opening and the threaded end C ofthe pipeor arm C ap'` 'preaches this opening Gf when the various parts of thefixture are properly assembled and in order to securely bind themtogether I Iemploy a nut Lwhich screws upon the end C and seats in theopening'G, and when i this nut is `properly screwed upon the from thewire is avoided and furthermore the` parts can be so firmly connectedthat all danger 'of the socket being misplaced is coxnpletely avoided'.

In practice I prefertomake thelanges li" of the seating rin F ofdifferent diam-'- eters so that the sai ring can bevused in connectionwith different 'sizes of arms and end bodies. In Figs. 5, 6, Zand 8 thearms E are square in cross section and `the end bodies or shellsKarecubical in forni having an opening K at the inner side surrounded byintegral lips K2 while-at the opposite side is the opening K3 in whichscrews the nut I for the purpose of connecting these parts together asreviously described. The

`lips K2 lit into te end of the arinE as i shown in Fig. l7 andconsequently hold the shell or endbody'in proper fixed position.

vThe nipple H is connected -to the cubi'cal shell orend body inexactly'the same manner as the round'or globular shell. It will be-noted that the same space for wiring from.

the socket end is provided in this construction as in the constructionshown 1n Figs. 1,'

2 and 3 and the same rigidity ofthe fixture as a whole is obtained 1nthis construction as in the other.

lt will thus be seen that l provide a ix' ture which can be quickly andeasily put together and taken apart, one in which l elimi-A nate severalaccessories usually employed in. lixtures of'tbis type and one whichwill elu hollow end body.` threaded end of the pipe or rod the arm,seating ring and end body or shell will be securely .and lirnilyconnected to the central feet a saving both in the manufacture of thearticle itself and in the labor employed in the installation of thefixture. It will thus be seen that I-provide a novel construction ofixture'capable of carrying out all of the objects hereinbefore referredto. I

lVh'atjI claim is 1. A device of the kind described, coinprising ahollow end body to which a socket is adapted 4to be attached, saidhollow, end body having oppositely disposed openings, a central frame,an arm extending `from said central frame' and connected withthe hollowend body, anda rod extending from thc-center of the .central framethrough the arm and through the hollow end body, and a Anut adapted to.screw'upon the outer. end of said rod and close one of the openings inthe 2. A device of the kind describedcomprising a hollow end body havinga n ipplejconnected. thereto and provided with'oppo'sitely gdisposedopenings, a central frame, a hollow arm extending-trom the central frameto the hollow end body, a seating ring adapted to receive the end ofsaid arm, a rod extending from the center of the central frame throughthe hollow arm Aand also the' hollow end body, and a nutv adapted toscrew upon the threaded end of said rod and bindl the parts together andclose the'outer opening of the hollow end body.

l 3. A device of the kind described comprising a hollow end bodyv havinga nipple connected thereto provided with oppositely disposed openings,.anut' adapted to lit in one of said openings, a seating ring `adapted tofit in the oppositeopening, la hollow arm adapted t'bcar against saidseating ring, a central frame to whichthe opposite` end ot said hollowarm is connected and arod extending'v frein the center of the centralframe through the hollow arm, seating ring and hollow end body, theendof said rod vbeing threaded and lengaging the nut for the purposespeciiied 4 4. A device of the" kind described coin'- -prising afrainehaving4 a Ccntralnnion, a

rod extending from said union radially through the Said frame, a hollowarm arranged upon the exterior of the frame and surrounding lsaid arrn,a hollow end body having oppositely disposed openings, a nut adapted toengage the tl1eaclecl-e11clot the' v rod and 'close theouter opening ofsaid hollow end body, and means connected with vthe hollow end bodyand-centraltrame for p'ositioning the hollow arm, as set forth.

RICHARD CHARLES RAT'ro.

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